Shandong Mingchuan Technology CO., LTD (former name:New building materials factory of social welfare huantai county) is located in the northern area of Shandong Province , as the professional manufacturer and exporter of water treatment chemicals in China. And we are the biggest supplier of polyaluminium chloride in Shandong Province We have an annual production capability of 20,000 tons. Our products are widely used in domestic and overseas water treatment mar...